La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	The genus Synchaeta (rotifers) in a north-western Mediterranean coastal lagoon (Etang de Thau, France): taxonomical and ecological remarks
Auteurs :	C. Rougier, Auteur ; R. Pourriot, Auteur ; T. Lam-Hoai, Auteur
Type de document :	Article
Dans :	Hydrobiologia (436(1-3) OCT 2000)
Article en page(s) :	105-117
Résumé :	During a survey of a north-western Mediterranean coastal lagoon, (the Etang de Thau, and at a nearby marine station, 1994-1998), six species of the genus Synchaeta were identified. The systematics of this illoricate genus is difficult and identification is virtually impossible in preserved material, although some indication may be obtained from an examination of the trophi after treatment with sodium hypochlorite. In this study, taxonomic characters (mastax, body morphology and egg size) were obtained from living material prior to preservation. We add some ecological observations: distribution of species (neither temperature nor salinity were found to be determining factors), co-existence (up to five species can co-occur) and consideration of trophic links (competition with tintinnids, copepod nauplii and cirripedes).

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